Beam-helicity and beam-charge asymmetries in the hard exclusive leptoproduction
of real photons from an unpolarised hydrogen target by a 27.6 GeV lepton beam
are extracted from the Hermes data set of 2006-2007 using a missing-mass event selection
technique. The asymmetry amplitudes extracted from this data set are more precise
than those extracted from the earlier data set of 1996-2005 previously analysed in the
same manner by Hermes. The results from the two data sets are compatible with each
other. Results from these combined data sets are extracted and constitute the most precise
asymmetry amplitude measurements made in the Hermes kinematic region using a
missing-mass event selection technique.

Beam-helicity and beam-charge asymmetries in the hard exclusive leptoproduction
of real photons from an unpolarised hydrogen target by a 27.6 GeV lepton beam
are extracted from the Hermes data set of 2006-2007 using a missing-mass event selection
technique. The asymmetry amplitudes extracted from this data set are more precise
than those extracted from the earlier data set of 1996-2005 previously analysed in the
same manner by Hermes. The results from the two data sets are compatible with each
other. Results from these combined data sets are extracted and constitute the most precise
asymmetry amplitude measurements made in the Hermes kinematic region using a
missing-mass event selection technique.